PT-2017-1922 · Linux+1 · Linux Kernel+1

Brad Spengler · Published 2017-02-02 · Updated 2017-04-28 · CVE-2017-8070

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.9.11

Description The issue is caused by a buffer overflow in the Linux kernel's drivers/net/usb/catc.c driver. It allows a local attacker to cause a denial of service, such as a system crash or memory corruption, by interacting incorrectly with the CONFIG VMAP STACK parameter and using more than one virtual page for a DMA scatterlist.

Recommendations For Linux kernel versions prior to 4.9.11, update to version 4.9.11 or later to resolve the issue. As a temporary workaround, consider restricting the use of the CONFIG VMAP STACK option to minimize the risk of exploitation.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2017-1127

ALT-PU-2017-1193

BDU:2017-01082

CVE-2017-8070

Affected Products

Alt Linux

Linux Kernel

References · 15

• https://github.com/torvalds/linux/commit/2d6a0e9de03ee658a9adc3bfb2f0ca55dff1e478 · Patch
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2d6a0e9de03ee658a9adc3bfb2f0ca55dff1e478 · Patch
• https://bdu.fstec.ru/vul/2017-01082 · Security Note
• http://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2017-8070 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-8070 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-8070 · Vendor Advisory
• http://openwall.com/lists/oss-security/2017/04/16/4 · Patch
• https://osv.dev/vulnerability/CVE-2017-8070 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-8070 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-8070 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-8070 · Security Note
• http://securityfocus.com/bid/98011 · Note
• https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8070 · Note